using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class RaftHealthUI : MonoBehaviour
{
    [Header("References")]
    [SerializeField] private RaftHealth raftHealth;
    [SerializeField] private Image hpFillImage;
    [SerializeField] private TMP_Text hpText;

    [Header("Text")]
    [SerializeField] private string hpPrefix = "HP";

    [Header("Options")]
    [SerializeField] private bool autoFindHealth = true;
    [SerializeField] private bool hideWhenNoHealth = false;

    [Header("Debug")]
    [SerializeField] private bool showDebugLog = true;

    private void Awake()
    {
        if (autoFindHealth && raftHealth == null)
        {
            raftHealth = FindFirstObjectByType<RaftHealth>();
        }
    }

    private void OnEnable()
    {
        if (raftHealth != null)
        {
            raftHealth.onHealthChanged.AddListener(UpdateHealthUI);
            UpdateHealthUI(raftHealth.CurrentHealth, raftHealth.MaxHealth);
        }
        else
        {
            if (hideWhenNoHealth)
                gameObject.SetActive(false);

            if (showDebugLog)
                Debug.LogWarning("[RaftHealthUI] RaftHealth가 연결되지 않았습니다.", this);
        }
    }

    private void OnDisable()
    {
        if (raftHealth != null)
        {
            raftHealth.onHealthChanged.RemoveListener(UpdateHealthUI);
        }
    }

    public void UpdateHealthUI(int currentHealth, int maxHealth)
    {
        if (maxHealth <= 0)
            maxHealth = 1;

        float ratio = Mathf.Clamp01((float)currentHealth / maxHealth);

        if (hpFillImage != null)
        {
            hpFillImage.fillAmount = ratio;
        }

        if (hpText != null)
        {
            hpText.text = $"{currentHealth} / {maxHealth}";
        }

        if (showDebugLog)
        {
            Debug.Log($"[RaftHealthUI] 체력 UI 갱신: {currentHealth}/{maxHealth}");
        }
    }
}